Abstract
Abstract Background The inhibition of cottonseed germination by soil salinization is a key obstacle affecting cotton production in Xinjiang. The most economical and effective measures to alleviate soil salinization damage are to explore the mechanism of cotton salt tolerance and to cultivate and popularize salt-tolerant varieties. Four cotton varieties were used in this study: the highly saline-alkali-resistant varieties Xinluzhong 82 and Xinluzhong 68 and the saline-alkali-sensitive varieties Xinluzhong 42 and Xinshi H12. These varieties were exposed to three different mixed saline-alkali concentrations: 0 mmol·L −1 (control, CK), 219 mmol·L −1 , and 365 mmol·L −1 . Results The germination characteristics, root traits, and changes in the storage material contents (crude fat, total protein, and total sugar) during cotton seed germination were analyzed. The results revealed that with increasing mixed saline-alkali concentrations, the relative water absorption, water absorption rate, germination rate, root length, diameter, area, and volume, and total sugar content of cotton decreased by 22.7%–90.1% on average, whereas the crude fat and protein concentrations increased by 7.6% on average. Under saline-alkali stress, cotton seeds undergo metabolic reallocation characterized by a decrease in carbohydrate content and the accumulation of lipids/proteins, potentially mitigating energy deficits and structural damage. Conclusions Under saline-alkali stress, highly resistant cotton varieties presented increased growth and adaptation during early root emergence. This was achieved by increasing water uptake and adjusting the root diameter. Under 365 mmol·L −1 saline-alkali stress, damages in these resistant varieties were correlated with their crude fat, protein, and storage substance contents. Changes in stored nutrients likely support cotton growth under stress. These findings reveal the physiological mechanisms underlying saline-alkali resistance in cotton and provide a scientific basis for the breeding of tolerant varieties. This study identified the key factors affecting cottonseed germination and offered a new direction for breeding programs.
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Claims 9
Claim · model-written summary
With increasing mixed saline-alkali concentrations, relative water absorption, water absorption rate and germination rate of cotton decreased by 22.7%–90.1% on average.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- increasing mixed saline-alkali concentrationse1
- Outcome
- relative water absorption, water absorption rate, germination ratee1
- Direction
- decreasede1
- Value
- 22.7%–90.1%e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Responses of cotton seed germination characteristics and storage substance metabolism to saline‒alkali stress”
e1“The results revealed that with increasing mixed saline-alkali concentrations, the relative water absorption, water absorption rate, germination rate, root length, diameter, area, and volume, and total sugar content of cotton decreased by 22.7%–90.1% on average”
e2“0 mmol·L −1 (control, CK)”
Claim · model-written summary
With increasing mixed saline-alkali concentrations, root length, diameter and area of cotton decreased by 22.7%–90.1% on average.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- increasing mixed saline-alkali concentrationse1
- Outcome
- root length, diameter, areae1
- Direction
- decreasede1
- Value
- 22.7%–90.1%e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Responses of cotton seed germination characteristics and storage substance metabolism to saline‒alkali stress”
e1“The results revealed that with increasing mixed saline-alkali concentrations, the relative water absorption, water absorption rate, germination rate, root length, diameter, area, and volume, and total sugar content of cotton decreased by 22.7%–90.1% on average”
e2“0 mmol·L −1 (control, CK)”
Claim · model-written summary
With increasing mixed saline-alkali concentrations, root volume and total sugar content of cotton decreased by 22.7%–90.1% on average.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- increasing mixed saline-alkali concentrationse1
- Outcome
- volume, and total sugar contente1
- Direction
- decreasede1
- Value
- 22.7%–90.1%e1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Responses of cotton seed germination characteristics and storage substance metabolism to saline‒alkali stress”
e1“The results revealed that with increasing mixed saline-alkali concentrations, the relative water absorption, water absorption rate, germination rate, root length, diameter, area, and volume, and total sugar content of cotton decreased by 22.7%–90.1% on average”
e2“0 mmol·L −1 (control, CK)”
Claim · model-written summary
With increasing mixed saline-alkali concentrations, crude fat and protein concentrations of cotton increased by 7.6% on average.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- increasing mixed saline-alkali concentrationse1
- Outcome
- crude fat and protein concentrationse3
- Direction
- increasede3
- Value
- 7.6%e3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Responses of cotton seed germination characteristics and storage substance metabolism to saline‒alkali stress”
e1“The results revealed that with increasing mixed saline-alkali concentrations, the relative water absorption, water absorption rate, germination rate, root length, diameter, area, and volume, and total sugar content of cotton decreased by 22.7%–90.1% on average”
e2“0 mmol·L −1 (control, CK)”
e3“whereas the crude fat and protein concentrations increased by 7.6% on average”
Claim · model-written summary
Under saline-alkali stress, cotton seeds showed a decrease in carbohydrate content.
- Taxon
- cottonGossypium hirsutume4
- Treatment
- saline-alkali stresse4
- Outcome
- carbohydrate contente4
- Direction
- decreasee4
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Under saline-alkali stress, cotton seeds undergo metabolic reallocation characterized by a decrease in carbohydrate content and the accumulation of lipids/proteins, potentially mitigating energy deficits and structural damage”
e2“0 mmol·L −1 (control, CK)”
Claim · model-written summary
Under saline-alkali stress, highly resistant cotton varieties showed increased growth and adaptation during early root emergence.
- Taxon
- cottonGossypium hirsutume5
- Material
- highly resistant cotton varietiese5
- Organ / stage
- early root emergencee5
- Treatment
- saline-alkali stresse5
- Outcome
- growth and adaptatione5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Under saline-alkali stress, highly resistant cotton varieties presented increased growth and adaptation during early root emergence”
Claim · model-written summary
Highly resistant cotton varieties achieved increased growth and adaptation during early root emergence by increasing water uptake and adjusting root diameter.
- Taxon
- cottonGossypium hirsutume6
- Material
- highly resistant cotton varietiese6
- Outcome
- growth and adaptatione6
- Qualifier
- increasing water uptake and adjusting the root diametere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Under saline-alkali stress, highly resistant cotton varieties presented increased growth and adaptation during early root emergence. This was achieved by increasing water uptake and adjusting the root diameter”
Claim · model-written summary
Under 365 mmol·L −1 saline-alkali stress, damages in resistant cotton varieties were correlated with crude fat, protein and storage substance contents.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 365 mmol·L −1 saline-alkali stresse7
- Outcome
- damagese7
- Qualifier
- crude fat, protein, and storage substance contentse7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Responses of cotton seed germination characteristics and storage substance metabolism to saline‒alkali stress”
e7“Under 365 mmol·L −1 saline-alkali stress, damages in these resistant varieties were correlated with their crude fat, protein, and storage substance contents”
Claim · model-written summary
Changes in stored nutrients likely support cotton growth under stress.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- cotton growth under stresse0
- Qualifier
- Changes in stored nutrientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in stored nutrients likely support cotton growth under stress”
The same questions in other papers
salinity · growth · Gossypium hirsutum (cotton)Positive and negative results
91 papers in the same direction as this paper · 16 in the opposite direction
- negative
- negative
- positive
104 papers more in this group
See all 108 papers →salinity · quality: sugar starch · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.